Molar conductivity ($$\Lambda $$m) of aqueous solution of sodium stearate, which behaves as a strong electrolyte, is recorded at varying concentrations (C) of sodium stearate. Which one of the following plots provides the correct representation of micelle formation in the solution?
(critical micelle concentration (CMC) is marked with an arrow in the figures)
A
B
C
D
2
JEE Advanced 2019 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
Choose the reaction(s) from the following options, for which the standard enthalpy of reaction of equal to the standard enthalpy of formation.
A
2C(g) + 3H2(g) $$ \to $$ C2H6(g)
B
2H2(g) + O2(g) $$ \to $$ 2H2O(l)
C
$${3 \over 2}$$O2(g) $$ \to $$ O3(g)
D
$${1 \over 8}$$S8(s) + O2(g) $$ \to $$ SO2(g)
3
JEE Advanced 2019 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
A tin chloride Q undergoes the following reactions (not balanced)
$$Q + C{l^ - } \to X$$
$$Q + M{e_3}N \to Y$$
$$Q + CuC{l_2} \to Z + CuCl$$
X is a monoanion having pyramidal geometry. Both Y and Z are neutral compounds.
Choose the correct option(s).
A
There is a coordinate bond in Y
B
The central atom in Z has one lone pair of electrons.
C
The oxidation state of the central atom in Z is +2
D
The central atom in X is sp3 hybridised
4
JEE Advanced 2019 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
In the decay sequence.
x1, x2, x3 and x4 are particles/radiation emitted by the respective isotopes. The correct option(s) is(are)
